You are buying a J&M Audio Speaker Acoustic Pad kit which fits 9-203 Harley-Davidson Electra Glides, Ultra, Street Glide and Tri-Glide Trike models. J&M's new inner fairing acoustic pads are one of the easiest things you can do to improve the bass and overall sound quality of your fairing mounted speakers. These special acoustic foam pads are die cut with adhesive installed and are made for the 9-203 versions of the Harley-Davidson Batwing Fairing. Installation is a snap, kit includes complete and detailed installation instructions
I feel $40.00+ is ridiculous for two pieces of cheap foam.
Better off buying something that is really designed for eliminating resonance like Dynomat or something similar.
Helps the sound of the radio.
I would recommend this product as an addition to your current sound system.